ArticleInternational braz j urol : official journal of the Brazilian Society of Urology
Retrograde vs. antegrade fl exible nephroscopy for detection of residual fragments following PNL: A prospective study with computerized tomography control.
Article in International braz j urol : official journal of the Brazilian Society of Urology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 25 citations in OpenAlex.
- Feasibility and efficiency of the use of pulsed thulium: YAG (Thulio) laser for ECIRS: a multicenter evaluation.World journal of urology · 2026Article
- International Alliance of Urolithiasis (IAU) consensus on miniaturized percutaneous nephrolithotomy.Military Medical Research · 2024Article
- Comparison of endoscopic versus CT assessment of stone-free status after percutaneous nephrolithotomy (PCNL).Urolithiasis · 2023Article
- The efficacy and safety of one-stage endoscopy combined with intrarenal surgery (mini-nephrostomy tract) in the prone split-leg position for complex renal calculi.Current urology · 2023Article
- Nonpapillary prone endoscopic combined intrarenal surgery: effectiveness, safety and tips, and tricks.World journal of urology · 2022Article
- Endourology treatment of giant ureteral stone: Distal ureteral stone lithotripsy with nephroscope and shockpulse.Urology case reports · 2022Article
- Urologists are optimistic surgeons: prevalence and predictors of discordance between intraoperative stone-free rate and cross-sectional imaging evaluation after vacuum-assisted mini-percutaneous nephrolithotomy.World journal of urology · 2022Article
- Predictive factors for success after supine percutaneous nephrolithotomy: an analysis of 961 patients.Revista da Associacao Medica Brasileira (1992) · 2022Article
- Surgical Parameters Related to Excessive Intrarenal Pressure during Minimally Invasive Percutaneous Nephrolithotomy in the Supine Position: A Prospective Observational Clinical Study.BioMed research international · 2022Observational
- Comparison of the outcomes of flexible ureteroscopy and mini-percutaneous nephrolithotomy for the treatment of kidney stones: a matched-pair analysis.Revista da Associacao Medica Brasileira (1992) · 2022Article
- Endoscopic combined intrarenal surgery (ECIRS) - Tips and tricks to improve outcomes: A systematic review.Turkish journal of urology · 2020Review
- Fourteen-Year Analysis of Percutaneous Nephrolithotripsy Outcomes: Evolution of Technique and Future Perspectives.International braz j urol : official journal of the Brazilian Society of UrologyReview
- Current role of endoscopic combined intrarenal surgery in the management of renal stones: A scoping review.Indian journal of urology : IJU : journal of the Urological Society of IndiaArticle
- Endoscopic Combined Intrarenal Surgery: best practices and future perspectives.International braz j urol : official journal of the Brazilian Society of UrologyReview
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6 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
introductionThe main aim of stone surgery is to establish stone free status. Performing fl exible nephroscopy is an effective tool in this manner. The aim of this study was to evaluate the role of retrograde fl exible nephroscopy for detection of residual fragments following percutaneous nephrolithotomy (PNL) in comparison with antegrade approach. MATERIALS AND
methodsData of 137 patients underwent ECIRS was collected prospectively. In all cases following stone clearance, collecting system was checked for residual fragments. First antegrade than retrograde fl exible nephroscopy was performed and success rates to reach all calices and detection of residual fragments were noted. All patients underwent CT and success rate of antegrade and retrograde approaches were compared. PPV and NPV of retrograde approach to detect residual fragments were calculated.
resultsAntegrade and retrograde nephroscopy successfully accessed all of the calices in 101 (73.7%) and 130 (94.9%) patients respectively (p<0.0001). Residual fragments were observed in 18 (13.1%) patients following antegrade fl exible nephroscopy. Retrograde approach identifi ed residual stones in 17 more cases. These cases were treated with fl exible nephroscopy or secondary percutaneous tract. Postoperative CT revealed residual stones in 10 (7.3%) patients. PPV and NPV of retrograde fl exible nephroscopy were 83.3% and 96.2%.
conclusionsFlexible nephroscopy effectively detects residual fragments following PNL. Retrograde approach was more successful than antegrade approach to reach all calices. We recommend performing retrograde fl exible nephroscopy following PNL especially in complex cases as it has the potential to increase SFR, decrease the need for second look surgery and unnecessary postoperative imaging.
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